A Recipe for the Geophysical Exploration of Enceladus
| Autor: | Bruce G. Bills, Ryan S. Park, Edwin S. Kite, Samuel M. Howell, Javier Roa, T. Joseph W. Lazio, Julie Castillo-Rogez, Gabriel Tobie, Douglas J. Hemingway, Gregor Steinbrügge, James Tuttle Keane, Christophe Sotin, Francis Nimmo, Vishnu Viswanathan, Valéry Lainey, Anton I. Ermakov |
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| Přispěvatelé: | Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Gravitational fields
0211 other engineering and technologies FOS: Physical sciences 02 engineering and technology Saturnian satellites Space (mathematics) 01 natural sciences Jet propulsion Physics - Geophysics Astrodynamics Gravitational field 0103 physical sciences Earth and Planetary Sciences (miscellaneous) Aerospace engineering Enceladus Instrumentation and Methods for Astrophysics (astro-ph.IM) 010303 astronomy & astrophysics Space observatories 021101 geological & geomatics engineering Earth and Planetary Astrophysics (astro-ph.EP) [PHYS]Physics [physics] Exploration geophysics business.industry Astronomy and Astrophysics Space observatory Geophysics (physics.geo-ph) Geophysics Space and Planetary Science Physics::Space Physics Astrophysics::Earth and Planetary Astrophysics Planetary interior business Astrophysics - Instrumentation and Methods for Astrophysics [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Geology Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | The Planetary Science Journal The Planetary Science Journal, 2021, 2 (4), pp.157. ⟨10.3847/PSJ/ac06d2⟩ The Planetary Science Journal, IOP Science, 2021, 2 (4), pp.157. ⟨10.3847/PSJ/ac06d2⟩ |
| ISSN: | 2632-3338 |
| Popis: | Orbital geophysical investigations of Enceladus are critical to understanding its energy balance. We identified key science questions for the geophysical exploration of Enceladus, answering which would support future assessment of Enceladus' astrobiological potential. Using a Bayesian framework, we explored how science requirements map to measurement requirements. We performed mission simulations to study the sensitivity of a single spacecraft and dual spacecraft configurations to static gravity and tidal Love numbers of Enceladus. We find that mapping Enceladus' gravity field, improving the accuracy of the physical libration amplitude, and measuring Enceladus' tidal response would provide critical constraints on the internal structure, and establish a framework for assessing Enceladus' long-term habitability. This kind of investigation could be carried out as part of a life search mission at little additional resource requirements. 21 pages, 6 figures. A paper submitted to PSJ, which is an extension of the white paper previously submitted to the decadal survey |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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